Our brains have a negativity bias and will remember bad memories more than good ones.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
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There are about 255 babies born worldwide every minute.
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Obsessive nose picking is called Rhinotillexomania.
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Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
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